how to fix P0700 code in Honda CR-V Fifth Generation (2017-2022)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative terminal of the battery to prevent electrical shorts.
• Ensure the vehicle is on a level surface and securely lifted if necessary.

2. Check and Replace Transmission Fluid

• Tools Required: Transmission fluid pump, funnel, fluid catch pan.
• Sub-steps:
  1. Remove the transmission dipstick and check the fluid level.
  2. If low, add the recommended transmission fluid (Honda ATF DW-1).
  3. If the fluid appears dark or smells burnt, drain the fluid using a catch pan and replace it with new fluid.
  4. Recheck the fluid level after driving the vehicle for a few minutes and topping off as necessary.

3. Inspect and Repair Wiring/Connectors

• Tools Required: Multimeter, wire brush, dielectric grease.
• Sub-steps:
  1. Visually inspect the wiring harness and connectors to the TCM for any signs of damage.
  2. Use a multimeter to check for continuity and proper voltage at the connectors.
  3. Clean any corrosion with a wire brush and apply dielectric grease before reconnecting.

4. Test and Replace Transmission Control Module (if necessary)

• Tools Required: OBD-II scanner, socket set, torque wrench.
• Sub-steps:
  1. If diagnostics indicate a faulty TCM, remove it by unscrewing the mounting bolts and disconnecting the wiring harness.
  2. Install the new TCM by connecting the wiring harness and securing it in place with the bolts.
  3. Torque the bolts to the manufacturer’s specifications (typically around 7-9 ft-lbs, but check specific service manual).

5. Clear Codes and Test Drive

• Tools Required: OBD-II scanner.
• Sub-steps:
  1. Reconnect the battery terminal.
  2. Use the OBD-II scanner to clear the P0700 code.
  3. Start the engine and take the vehicle for a test drive to ensure proper operation of the transmission.